Auxiliary dialing tool



Dec. 11, 1928. 1,694,429

W. L. PEAK AUXILIARY DIALI NG TOOL Filed Aug. 5, 1927 IN V EN TOR.

BY c

- ATTORNEY I so Patented Dec. 11, 1928.

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AUXILIARY DEALING TOOL. 1

Application filed a gust 5, 1927.] Serial Nb. 2'1o,se1.

This invention relates to dial operating de.

vices, and more particularly to devices of this ,character whici-rreadapted to be used in the operation of dials for telephoneinstrumentsor the like. I, a I

The .mova'ble circular plates or dials for telephone instruments areusually provided with a series of holes, each hole having a numberassociated with it.- To operate the dial, a finger is inserted in agiven hole and the plate rotated. until the finger strikes a fingerstop, after which the finger is removed and a spring causes the plate torotate back to its normal position. In certain testing operation's, itis necessary to dial a given num ber repeatedly while closely observing.the apparatus being tested.

Anobject of this invention is to provide a device whereby any givennumber may be dialed repeatedly with a minimum possibility of error andwithout looking at the dial, thus enabling continuous and closeobservation of the apparatus being tested.

Another object consists in the provision of a device of this characterwhich will assist the user by making it unnecessary to insert a fingerin a hole of the movable plate thus avoiding abrasion or injury to thefinger when continuous dialing is necessary as in testing operations.

A further object is to provide a device which will tend to prevent theuseof pencils or other makeshift arrangements, the use of which causesinjury or excessive wear to various parts of the dial.

A further ob ect is to provide a device which is simple and inexpensive1n construction and one which is not liable to get easily I out oforder.

These and further objects will be apparent from the followingdescription, when considered in connection withthe accompanying drawingin which certain novel features of the invention appear. 7

Referring to the drawing, Figure 1 is a sectional side elevation of theimproved device; Fig. 2 is alike view of a modification of the device;and Fig. 3 is a perspective view of a dial with the improved device inposition thereon.

In Fig. 1 of the drawing, the numeral 5 designates a top swivel portionor a head which forms a finger-piece. The member 5 may be formed asshown in Fig. 1 and composed of any suitable material, such as hardportionS, thefbotto 'n of which of the sleeve 6.

surface upon which the lower surface of the headf5 mayb'e'rotated.Thelcylindrical men her 7 is shownas havinga thickened upper V I, p v"lies in the same horizontal plane'asthe end ofthe sleeve 7 rubber. Anyinteriorly threaded tubular 6. A chamber is formed in theflower portionof the cylindrical member? and the wall of this chamber has a pluralityof longitudislots 9 provided therein. A'cric'um'ferentia'l "groove '10extends about thefoutersurfac'e ofthe wall and is provided- "for thepurpose of engagingthe edge of an o'pening'fin the 'filOVtIblG plate ofadia'l; The slots 'o serve to provide suiiioient flexibility to permitthe seating of the circumferential groove of the wall agamst the'edgesof the openings in the movable plate. The elasticity of said wall is r Vsuch that it is retained in it is removed by hand.

The shank of a screw .11 engages the interior threads of the tubularsleeve 6, while the head of the screw andassociated washer are seated onthe shoulder provided by the flush portions of the member 8 and the endthis position until In Fig. 2 the swivel head 5 may be com posed ofmetaland be provided with a concave portion 12 in its top to form afingerengaging surface. The sleeve 6, similar to Fig. 1, extends throughthe top of the joy lindrical portion 7 and its interior threaded surfaceengages the shank of the screw 11. In Fig. 2, however, the head of thescrew 11 clamps the flat portion of the member 13 against the bottom ofthe memberv 8. The

member 13 has a plurality of downwardly extending resilient prongs 14,each of which is positioned against the walls of the chamber portion ofthe cylindrical member 7 at a point intermediate the longitudinal slots9. These prongs serve to permit sufficient flexibility for the lowerportion of the cylindrie V cal member to engage the edge of the openingsin the movable plate of a dial and also tion to normal.

provide suflicient rigidity to restore said por- Theimproveddevice isapplied to the dial 14 of. a telephone instrument in the manner 7indicated in Fig. 3. The bottom portion of the cylindrical membercomprising the sep- 'arated Wall portion is inserted into'the desiredopening of the movable plate and it is i rotated until the devicestrikes the stop-piece construction, operation and many .15, after whichthe movable plate is returned automatlcallyr In testing circuits ordevices connected therewith, it Will be apparent that after the improveddevice has been inserted to watch the dial to it will not be necessarysee if the proper digit is dialed, permittingcloser' observationof theswltch'or other device which may be under test.

' From the :t'oregoing,it is thought that the advantages of the'hereindescribed and delineated invention will be apparent to those skilled inthe art without 'iurtlier description, and it Will be" understood thatvarious changes in the size, shape, proportion and minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any advantages of the invention. 1 'VVhat is claimed is: 1 r

1. jAdeviee for operating a'tele'phone instrument having a dial, saiddial including a movable circular plate with a seriesot openings aboutits surface, said devicecomprising a lower portion having a casing ofsufli- July, 1927.

esa- 29 cient flexibility tobe inserted in said openings and sufli-cientelasticity to be retained by the edges of said openings, and an upperportion comprising a finger-piece .in swivel engagement with the firstmentioned portion for imparting therethrough a rotary movement to saidcircular plate.

2. A device for operating a 'telephoneinstrulnent having a dial, saiddial including a movable circular plate with a series of openings aboutits surface, said device comprisinga'lower portion having a circularcasing provided with a pluralityoilongitudinal slots 7 and acircumferential groove, the. slotted casing having sufficientflexibility andv elas- WARNER L PEAKQ 16th day of Y i

